**6. Conclusions**

The main results of the numerical experiments for the Oseen problem (8) and (9) lead to the following conclusions:


**Author Contributions:** V.A.R. and A.V.R. contributed equally in each stage of the work. All authors read and approved the final version of the paper.

**Funding:** The reported study was supported by RFBR and RSF according to the research project Nos. 19-01-00007-a and 19-71-20006, respectively.

**Acknowledgments:** We would like to thank the Philip Li, Elaine Chen and the referees for their invaluable suggestions due to which the manuscript was significantly improved.

**Conflicts of Interest:** The authors declare no conflict of interest.
